In my professional experience, I have seen Google Sheets being used as a project management tool. Teams use it to track and prioritize tasks, monitor progress, and collaborate in real-time.

One use case that stands out to me is using Google Sheets as a workflow management tool. Teams can utilize features like data validation and filtering to create automated workflows, track team members' progress, and facilitate issue tracking and resolution.

I've also seen Google Sheets being used as a CRM (customer relationship management) system. It allows teams to organize and track customer data, enable easy sharing and updating, and create custom reports.

Another interesting use case I came across is using Google Sheets as a data visualization tool. By combining formulas, conditional formatting, and charts, it becomes possible to create dynamic dashboards that display key metrics and trends.